From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E675C26988C; Tue, 8 Apr 2025 12:56:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744117000; cv=none; b=qChfGY1pKvggpHnYIUu/ZHVxsd9zqBAKcRf7BnSE/wfhQul+3UfKabnnFQuc1rI9uXmXl8Soutsw9AXTOSa3zDmYoShhue/TTSqHfyIj7AcjHqgTi3BSZPm0wO9+V+qpopp7eY28RTHvDwtNFH+9wT5wPOKz6+qchzr5GpOVYn8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744117000; c=relaxed/simple; bh=BCkeWY8hXwX4y/XKnbLE6EyDq/LXc+swQ7uMvinZhLU=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=VkSaRoC16QflQxBEKUYEzjWAZe4DoU4w1o13T7l+W4elQTBbm5pLaHmbb5vjv9Vi2aIn7Kt2AXdTioo61OezaHgyUR+rbvMyOenan9QS2HvmX4VP71J9YDZOFlfiC7zH3f2CU4eGs1GNpg+M7Rl3ZKWhyGmnMVQeg/3MgZlUnsg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=iSmih8so; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="iSmih8so" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 14DAEC4CEE5; Tue, 8 Apr 2025 12:56:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1744116999; bh=BCkeWY8hXwX4y/XKnbLE6EyDq/LXc+swQ7uMvinZhLU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=iSmih8soNEGMOekJ4ax3/7krvfR9snwuW3k/3wl0OyGcDfOP5rkJisMIC3GEeFKPD Fvoc6gkB92YirUtpUqxIxTlTjnQ/Ik3xFbQL5YwLogOB0KCQ0/JgV7+Jn6Eyy9juTA xnwITV76KcBI5Ut098gwm2a+nzOa2Tkx0Nrpm9DQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nikita Shubin , Dave Jiang , Jon Mason , Sasha Levin Subject: [PATCH 6.12 307/423] ntb: intel: Fix using link status DBs Date: Tue, 8 Apr 2025 12:50:33 +0200 Message-ID: <20250408104852.949834595@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250408104845.675475678@linuxfoundation.org> References: <20250408104845.675475678@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nikita Shubin [ Upstream commit 8144e9c8f30fb23bb736a5d24d5c9d46965563c4 ] Make sure we are not using DB's which were remapped for link status. Fixes: f6e51c354b60 ("ntb: intel: split out the gen3 code") Signed-off-by: Nikita Shubin Reviewed-by: Dave Jiang Signed-off-by: Jon Mason Signed-off-by: Sasha Levin --- drivers/ntb/hw/intel/ntb_hw_gen3.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/ntb/hw/intel/ntb_hw_gen3.c b/drivers/ntb/hw/intel/ntb_hw_gen3.c index ffcfc3e02c353..a5aa96a31f4a6 100644 --- a/drivers/ntb/hw/intel/ntb_hw_gen3.c +++ b/drivers/ntb/hw/intel/ntb_hw_gen3.c @@ -215,6 +215,9 @@ static int gen3_init_ntb(struct intel_ntb_dev *ndev) } ndev->db_valid_mask = BIT_ULL(ndev->db_count) - 1; + /* Make sure we are not using DB's used for link status */ + if (ndev->hwerr_flags & NTB_HWERR_MSIX_VECTOR32_BAD) + ndev->db_valid_mask &= ~ndev->db_link_mask; ndev->reg->db_iowrite(ndev->db_valid_mask, ndev->self_mmio + -- 2.39.5